... 2.OD:219-2420mm,WT:5-30mm,length of pipe:3-18m 3.certificate: API 5L & ISO Carbon Steel ... in china as manufacture, stockiest, distributors, and exporters of pipe fittings products of all sizes and shapes. The TJRK has ... the fields of petroleum , heat, and natural gas, construction pipe, ground piling pipeOutside diameter219-2420mmWall thickness5.00-30.00mmLength6-20mTechniqueDouble sides submerged ...